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Youssef SH, Ganesan R, Amirmostofian M, Kim S, Polara R, Afinjuomo F, Song Y, Chereda B, Singhal N, Robinson N, Garg S. Printing a cure: A tailored solution for localized drug delivery in liver cancer treatment. Int J Pharm 2024; 651:123790. [PMID: 38190951 DOI: 10.1016/j.ijpharm.2024.123790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/20/2023] [Accepted: 01/04/2024] [Indexed: 01/10/2024]
Abstract
Adjuvant chemotherapy is highly recommended for liver cancer to enhance survival rates due to its tendency to recur frequently. Localized drug-eluting implants have gained traction as an alternative to overcome the limitations of systemic chemotherapy. This work describes the development of biodegradable 3D printed (3DP) bilayer films loaded with 5-fluorouracil (5FU) and cisplatin (Cis) with different infill percentages where the 5FU layers were 40%, 30%, and 30% and Cis layers were 10%, 15%, and 10% for films A, B, and C, respectively. The relevant characterization tests were performed, and the drug content of films was 0.68, 0.50, and 0.50 mg of 5FU and 0.39, 0.80, and 0.34 mg of Cis for films A, B, and C, respectively. Cis release was affected by the alterations to the film design, where films A, B, and C showed complete release at 12, 14, and 23 days, respectively. However, 5FU was released over 24 h for all films. The films were stable for up to two weeks after storage at 25 °C/65% relative humidity and four weeks at 4 °C where drug content, tensile strength, FTIR, and thermal analysis results demonstrated negligible alterations. The cytotoxicity of the films was assessed by MTS assays using HepG2 cell lines demonstrating up to 81% reduction in cell viability compared to blank films. Moreover, apoptosis was confirmed by Western Blots and the determination of mitochondrial cell potential, highlighting the potential of these films as a promising approach in adjuvant chemotherapy.
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Affiliation(s)
- Souha H Youssef
- Centre for Pharmaceutical Innovation (CPI), University of South Australia, Adelaide, SA, Australia
| | - Raja Ganesan
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, Australia
| | | | - Sangseo Kim
- Centre for Pharmaceutical Innovation (CPI), University of South Australia, Adelaide, SA, Australia
| | - Ruhi Polara
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, Australia
| | - Franklin Afinjuomo
- Centre for Pharmaceutical Innovation (CPI), University of South Australia, Adelaide, SA, Australia
| | - Yunmei Song
- Centre for Pharmaceutical Innovation (CPI), University of South Australia, Adelaide, SA, Australia
| | - Bradley Chereda
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, Australia
| | - Nimit Singhal
- Royal Adelaide Hospital, Central Adelaide Local Health Network, Adelaide, SA, Australia; Dept of Medicine, University of Adelaide, Adelaide, SA, Australia
| | - Nirmal Robinson
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, Australia; Discipline of Medicine and the Faculty of Health Science, University of Adelaide, Adelaide, SA, Australia
| | - Sanjay Garg
- Centre for Pharmaceutical Innovation (CPI), University of South Australia, Adelaide, SA, Australia.
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Moutzoukis M, Argyriou K, Kapsoritakis A, Christodoulou D. Endoscopic luminal stenting: Current applications and future perspectives. World J Gastrointest Endosc 2023; 15:195-215. [PMID: 37138934 PMCID: PMC10150289 DOI: 10.4253/wjge.v15.i4.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/30/2023] [Accepted: 04/04/2023] [Indexed: 04/14/2023] Open
Abstract
Endoscopic luminal stenting (ELS) represents a minimally invasive option for the management of malignant obstruction along the gastrointestinal tract. Previous studies have shown that ELS can provide rapid relief of symptoms related to esophageal, gastric, small intestinal, colorectal, biliary, and pancreatic neoplastic strictures without compromising cancer patients’ overall safety. As a result, in both palliative and neoadjuvant settings, ELS has largely surpassed radiotherapy and surgery as a first-line treatment modality. Following the abovementioned success, the indications for ELS have gradually expanded. To date, ELS is widely used in clinical practice by well-trained endoscopists in managing a wide variety of diseases and complications, such as relieving non-neoplastic obstructions, sealing iatrogenic and non-iatrogenic perforations, closing fistulae and treating post-sphincterotomy bleeding. The abovementioned development would not have been achieved without corresponding advances and innovations in stent technology. However, the technological landscape changes rapidly, making clinicians’ adaptation to new technologies a real challenge. In our mini-review article, by systematically reviewing the relevant literature, we discuss current developments in ELS with regard to stent design, accessories, techniques, and applications, expanding the research basis that was set by previous studies and highlighting areas that need to be further investigated.
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Affiliation(s)
- Miltiadis Moutzoukis
- Department of Gastroenterology, University Hospital of Ioannina, Ioannina GR45333, Greece
| | - Konstantinos Argyriou
- Department of Gastroenterology, Medical School and University Hospital of Larissa, Larissa GR41334, Greece
| | - Andreas Kapsoritakis
- Department of Gastroenterology, Medical School and University Hospital of Larissa, Larissa GR41334, Greece
| | - Dimitrios Christodoulou
- Department of Gastroenterology, Medical School and University Hospital of Ioannina, Ioannina GR45500, Greece
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Peng L, Wang L, Wu K, Deng A, Li J. A resonant energy transfer electrochemiluminescence immunosensor based on low trigger potential of Zn-metal organic framework and CoOOH nanosheets for 5-fluorouracil detection. Biosens Bioelectron 2023; 231:115261. [PMID: 37030234 DOI: 10.1016/j.bios.2023.115261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 03/07/2023] [Accepted: 03/22/2023] [Indexed: 03/30/2023]
Abstract
The organic luminophores have inspired widespread interest in electrochemiluminescence (ECL). Herein, a novel rod-like metal-organic framework was formed by chelating Zn ion with 9,10-di(p-carboxyphenyl)-anthracene (DPA), defined as Zn-MOF for simplicity. In this proposal, the prepared Zn-MOF was first used as a powerful organic luminophore with low trigger potential, thus developing a competitive ECL immunoassay for ultrasensitive detection of 5-fluorouracil (5-FU) with 1,4-diazabicyclo[2.2.2]octane (D-H2) as the coreactant. The absorption spectrum of cobalt oxyhydroxide (CoOOH) nanosheets and the ECL emission spectrum of Zn-MOF could be highly matched, which ensured the occurrence of resonance energy transfer (RET). For that, ECL-RET was applied in the assembly strategy of the ECL biosensor, and Zn-MOF was used as the energy donor and CoOOH nanosheets as the acceptor. Taking advantage of the luminophore and ECL-RET, the immunoassay can be used for ultra-sensitive quantitative detection of 5-fluorouracil. The proposed ECL-RET immunosensor showed satisfactory sensitivity and accuracy with a wider linear range from 0.001 to 1000 ng/mL, and a lower detection limit (0.52 pg/mL). Hence, it is worth believing that this strategy can pave a bright research direction for the detection of 5-FU or other biological small molecules.
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Youssef SH, Kim S, Khetan R, Afinjuomo F, Song Y, Garg S. The development of 5-fluorouracil biodegradable implants: A comparative study of PCL/PLGA blends. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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3D-Printed EVA Devices for Antiviral Delivery and Herpes Virus Control in Genital Infection. Viruses 2022; 14:v14112501. [PMID: 36423110 PMCID: PMC9696101 DOI: 10.3390/v14112501] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/27/2022] [Accepted: 11/04/2022] [Indexed: 11/16/2022] Open
Abstract
Herpes viruses are widespread in the human population and can cause many different diseases. Genital herpes is common and can increase the risk of HIV infection and neonatal herpes. Acyclovir is the most used drug for herpes treatment; however, it presents some disadvantages due to its poor oral bioavailability. In this study, some ethylene vinyl acetate devices with different acyclovir amounts (0, 10, and 20 wt.%) were manufactured by fused filament fabrication in two different geometries, an intrauterine device, and an intravaginal ring. Thermal analyses suggested that the crystallinity of EVA decreased up to 8% for the sample loaded with 20 wt.% of acyclovir. DSC, SEM, and FTIR analyses confirmed that the drug was successfully incorporated into the EVA matrix. Moreover, the drug release tests suggested a burst release during the first 24 h followed by a slower release rate sustained up to 80 days. Biological assays showed the biocompatibility of the EVA/ACV device, as well as a 99% reduction in vitro replication of HSV-1. Finally, the EVA presented a suitable performance for 3D printing manufacturing that can contribute to developing personalized solutions for long-term herpes treatment.
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